Ribbon-feeding mechanism.



MTEMED MAY n NG MECH APPLICATION ULEB JANi ANIVSM. y 8,19

, BBBUN' FEED www vcertain newl and Unire-n rr :rss

CORPORATIO OF MISSOURI.

MlQSSGURI, ASSIAGNOR TO .SECURITY ST.. LOUIS, MISSOURI, A

meson-ssamm@ meenemen..

Specification of Letters Patent.

. Patented May 7, 1907.

Application ne@ January 28,1907. serial no. 354,485.

To (tI/Z whom, t may concern: i

Be it known that I, ADoLPn O. Sonno- LINSiU, a citizen. of the United States, residing at St. Louis, Missouri, have invented a useful Improvement in Ribbon-Feedin Mechanism, of which the following is a fu such as Will enable others skilled in the art to which it appertains to make'and use the same, reference being had to the accompanying drawings, orming part vof this specification, in Which j Figure 1 is a front elevation of a ribbon'- feeding mechanism embodying my invention; Fig. 2-is a view similar to Fig. 1. showing the partsin a'glifferent position;l Fig. 3 is a ver-r tical sectional view taken on` the line 3-3 of.

Fig. 1; and Fig.4 4 is a detail sectional view of oneof the spools on which `the inking ribbon iswound. -f ,Y This invention relatesto 'mechanisms for feeding inkingfribbons and has for its object to provide means for feeding a ribbon from one spool onto a second spool, and thereafter automatically change the directionof feed so that the ribbon'will be rewound from the second spool onto thefirst spool.

I have herein shown my-invention in connection with a fare register having type Wheels for printing the rcondition of the reg -ister on a'strip of paper but it Will be obvious that my invention is not limited to this particular urpose and could be used equally Well wit any printing mechanism inked by means of a ribbon. l

-The articular type of fare register with which t isribbon feeding mechanism is used is shown and described in my pending application Serial No. 319,616, filed Mayl, 1906, to which reference may be had forv a more detailed descriptionl of the operation of'the resetting shaft which in the embodiment of my invention herein'shown constitutes Athe means for imparting'movement in one direction tothe member that carries lthe pawls which feed Vthe ribbon-carrying spools. I Wish it to be understood, however, that I do not consider my invention limited to this particular means for actuating the paWl-carrying member as numerous other devices could be used for this purpose. i

Referring to the drawings Which represent the preferred form of my invention applied ll, clear, and exact description,

to the printing mechanism of a fare register, 17 designates the strip of paper on which thecondition of the register is printed by total` izer adding Wheels 7 4, said strip resting-on a plate 172. The inking ribbon 167', which' is employed to enable the type on the adding Wheels to make a permanent inkirnpression on the strip of paper, is Wound on a spool 168 carried by a shaft 169 that projects out Wardl-y from a stationary plate and a second rewinding spool 17 C* similar in construction to the spool ii; The inking ribbon is led from the spool 168 under a guide roller 17.1 over the upper face of the strip of .paper which rests on the plate 17 2, thence around a'roll 173 and back underneath. a .roll '174C to the rewinding spool 170.

The spools on Which the hiking ribbon is Wound are of noveL. construction aswell asthe mechanism employed for actuating said spools. One of the spools is shown in sectionl in Fig. i and referring to said fi re it Will be' seen that the shaft 169 on Whidhthe spool is mounted is provided a slot 183 in -which a Aspring 184 is located, Said sprin bears against the inside of the hub or barre of the spool and thus prevents the spool from turn ing too freely on its shaft. The force With which the spring engages the hub of the spool can be varied by turning a screw tireaded plug 185 in which one end of the spring is seated, the shaft 169 being also provided With a cap screw 185, Ithe vhead or 'Bange of which is of greater diameter than the shaft and thus prevents the spool from moving endwise of the shaft -when said cap 'screw is irioperative position.

A ratchet 187 fastened'to one fiange of each spool and the. mechanism -for actuating said spool consists of a sliding member or plate 18S provided with paWls 189 and 190 which co-operate with the-respective ratchets of the two' s ools. The righthandy end of said sliding p ate (looking at Fig. 1) is connected to a rock arm 191 provided with an arm 1,92 which extends under a stud or roll 135 on aplate 124 which is depressed Whenever the resetting shaft 120 is operated, said IOC shaft carrying a cam 121 provided in its lower w side with a' recess 122 which receives a pin 123 on the sliding plate 124. Accordingly,

each time the resetting shaft is o erated thearm 191 will be rocked and the 'sli e plate 188 ICS - will be actuated to canse the pawl thereon which is then ,in engagement with its co-operating ratchet to impart a slight rota movement to the spool and thus carry a di vferent section'of the inking ribbon into alinement with the type of' the totalizer Wheels,

the slide late 188 being returned to-starting" position y means of a spring 193.

lIt is desirable that the directlon 1n which ro 4the inking` ribbon is fed should be reversed after most of the ribbon has been whund from the spool 168 onto the spool 170 and to this' end the pawls on the slide plate"188 are constructed in the following manner: Re-

i 5 ferring to Fig. 1 it will be seen that the pawl 190 is in engagement with its coo eratmg ratchet. This'pawl 190 is provi ed at its outer end with a lug 194through which a spring195 extends that is fastened at its other zo end to a rock stud or shaft-1.96 journaled in the slide plate 188 and the tendency of said spring is to hold the pawl 190 in engagement with its ratchet, the rock shaft 196 being provided with a projecting pin 197 that coop crates with inverted V-shaped teeth 198 and 199'formed in a looking dog y200 pivoted to the slide plate and actuated by a coiled spring 201 whereby the rocking vstud .196 is. Iheld in'either of two positions. The awl 3o 190 is 4rovided with a pin 202 which extends throng an elongated slot in one end of the aryl 189. A device 203. of approximately bell crank shape is adjustably connected to a sleeve 204 which is oscillatingly mounted on 3 5 a fixed stud 204, the end of which rojects f through an elon ated slot 205 in t e slide plate 188 and rol ers 206 and 207 are mounted in the opposite ends of said device 203 for bearing res ectively on the inkingribb'on 40 wound on t e spools 168 and 170. A pointved pin 208 projects upwardly from the sleeve 204 and co-operates with inverted V-,shaped' notches 209 and 210 formed in a pivotally mounted locking dog 211 which-1s forced downwardly by a spring 212 land thus holds the device 203 in either of two positions. The sleeve 204 is provided with a laterally extending arm 213, shown in dotted'lines in Fig. 1, which has two contact lugs, and projecting between these contact lugs is an arm 214 fastened to the rocking stud 196. When the pin on tbe'rocking stud 1,96 is in enga ement with. the notch vr198 of the locking..` og- 200, the pawl 190 will be held in ositionA t0 engage and actuate the ratchet o spool-170 each time the slide plate is moved forwardly. When a certain amount of the inking ribbon has been wound on the spool 170, the roll 207 :in the end of the device 203 will bear on said 6o"ribbon, and as said sp'ool c'ontinues to fill thev device 203 will be rocked, thereby causing its pointed pm 208 to ride out of the notch 210 in the locking dog 211 and pass into the' notch 209 in said dog. As vthe side Walls of 5 said vnotch are inclined a quick movement Will be ii'narted to the device 203 which causes the ower lug on the arm 213, carried by the sleeve 204 to which the device 203 is connected, to 'engage the arm 214 fixed to the rock stud 196 and rock it upwardly, thereby causing the spring 195' to be elevated and thus move thepawl 190 into an inoperative position with respect -to the ratchet which 1t operates, the pin on the rock stud 19d sliding into the other notch 199 of the locking dog 200 and thus holding the pawl 190 inoperative. As the pawl 190 moves out of engagement with its ratchet, the pin on said pawl -cooperating with the slot in the pawl189, lmoves saidawl 139 into operative position so that it wi l engage and actuatel the ratchet of the s ool 168, each time the slide plate 188 moves orwardly. This paWl 189 is moved into an inoperative position and the pawl 190 moved into an operative position when the s ool 168 becomes filled with the ribbon, in t e same manner as described with reference to awl 190 as the device 203 is rovided with a roll 206 which engages the rib on that is wound. onto the spool 168.

Fromthe foregoing description it Will be mechanism which is entirely automatic in its operation and causes the ribbon to be fed from'one spool to another as the spools become filled.

Having thus described my invention, what I claim as new and desire to secure byLet-` ters Patent is:

1. A ribbon-feedingmechanism comprising a supply spool, a rewinding spool, a recipseen that I have constructed a ribbon feeding v IOO rocating` member carrying pawls co-operating with ratchets on said spools, a rocking member having one of its ends arranged in aiihementwiththe supply spool and its opposite end .in alinement with the re-Winding spool, which member is ada ted to beengaged and actuated bythe bon that is wound onto the spopls, a 'locking device for IIS .er carried .by said- 'I ber is actuated by the ribbon whichv is wound thereon", `a locking means for said pivotally mounted member, and means for transmitting the movement of said pivotally mounted member to 'the rocking member which is i connected to the pawls; substantially as described.I

.-in one end of said shaft and having the lend of' the spring spool is mounted, aspring mounted in a slot in said shaft foreng'a ing the interior of said spool, and a screw-t eaded plug arranged mounted therein; substantially as described. v 4 4. A ribbon-feeding mechanism vcomprising a supply spool, a rewinding spool, areciprocating member: provided with pawls lfor co-operatinsg with ratchets on said spools,a

rocking member mounted on. the recipro-.

eating member and being in yielding engagement with one of said pawls, a connection be-l tween said pawls, and a pivotally. mounted device adapted to be actuated by thefrib'bon wound on 'said spools for -imparting movement to said rocking member; substantially as described.

V, 5. A ribbonfeeding mechanism fcomprising a 'supply spool, a rewinding spool, a movable member provided with pawls for actuate ing said ratchets, a connection between said pawls, a `rocking member'I for moving said.

pawls into and out of operative position, a locking device for said rocking member,A and means actuated by the ribbon wound, on

saidv spools for imparting movement to said rocking member; substantially as described.v

6. Aribbon feedingk mechanism comprising a supply spool, a reWindi-ng' spool', a reciprocatingmember carrying pawls for actui553. In a machine of the cIaSsdescribedja 2'; y ribbon-carrying spool, a shaft on' which said n atingsaid ratchets, a device carried by said member for moving both of said pawlsy to carry them into and out of engagement with *their cc-operating ratchets, means for lockactuated by the ribbon wound on said spools means for locking the member. last referred 5to; substantially as described., 7. A ribbon-feeding mechanism' comprising a'fsupply spool, a rewinding spool, a relciprocating member carrying pawls for actuating vsaid ratchets, a connection between said paWls, a rocking member mounted on the reciprocating member and provided with bei` having its opposite, ends arranged in alinement with said spools and adapted to be actuatedA bythe ribbon wound thereon,

actuating the rocking member, and a yielding locking device for said pivotally mounted member; substantially as described.

In testimony whereof I hereunto affix my signature in the presence of two witnesses, this 27th day of October 1906.

Witnesses:

WELLS L. CHURCH,

GEORGE BAKEWELL.

ing said device, 'a member vadapted to befor imparting movement to said device, and

a yieldingarm that isconnected to one of' said pawls, a yielding locking. device vfor saidrocking member, a pivotally mounted mem-` means on said pivotally mounted member for 

